Some helpers for Java Swing

CSHelp.java

import javax.swing.JDialog;
import javax.swing.JFrame;
import javax.swing.JTable;
import javax.swing.UIManager;
import javax.swing.UnsupportedLookAndFeelException;
import javax.swing.table.TableColumnModel;

/**
 * Swing helper for column of JTable
 * @author  keating_andy_given
 */
public class CSHelp {
	
	/**
	 * 设置JTable的列宽
	 */
	public static void columnWidth(JTable table, int width) {
		TableColumnModel columnModel = table.getColumnModel();
		for(int i = 0; i < columnModel.getColumnCount(); i ++){
			columnModel.getColumn(i).setPreferredWidth(width);
		}
	}
	
	/**
	 * 设置JTable某一列的列宽
	 * @param table
	 * @param width
	 */
	public static void columnWidth(JTable table, int columnNumber, int width) {
		table.getColumnModel()
			.getColumn(columnNumber).setPreferredWidth(width);
	}
	
	/**
	 * 隐藏JTable第一列
	 */
	public static void hideFirstColumn(JTable table) {
		table.removeColumn(table.getColumnModel().getColumn(0));
	}
	
	/**
	 * 设置style
	 */
	public static void style() {
		JFrame.setDefaultLookAndFeelDecorated(true);
                JDialog.setDefaultLookAndFeelDecorated(true);
                try {
                        UIManager.setLookAndFeel(new com.sun.java.swing.plaf.windows.WindowsLookAndFeel());//windows样式
                } catch (UnsupportedLookAndFeelException ex) {
                        Logger.getLogger(CSHelp.class.getName()).log(Level.SEVERE, null, ex);
                }
	}
}

MyTableModel.java

import java.util.Vector;

import javax.swing.table.DefaultTableModel;

/**
 * Model for JTable (cannot be edit) 
 *
 * @author  王吉文
 */
public class MyTableModel extends DefaultTableModel {

      private static final long serialVersionUID = 1L;

//    public MyTableModel(Vector<Vector<String>> data,
//            Vector<String> column) {
//        super(data, column);
//    }
    
    public MyTableModel(Vector<Vector<Object>> data,
            Vector<String> column) {
        super(data, column);
    }

    /**
     * 不可编辑
     */
    @Override
    public boolean isCellEditable(int row, int column) {
        return false;
    }
}

SaveChooser .java

import java.io.File;

import javax.swing.JFileChooser;
import javax.swing.JOptionPane;
import javax.swing.filechooser.FileNameExtensionFilter;

/**
 * save file dialog
 * 
 * @author keating_andy_given
 */
public class SaveChooser extends JFileChooser {

	/*-------------------类成员定义--------------------*/
	private static final long serialVersionUID = 1L;

	/*-------------------构造方法--------------------*/
	public SaveChooser() {
		super();
		this.setAcceptAllFileFilterUsed(false);
		this.setFileFilter(new FileNameExtensionFilter("BMP(*.bmp)", "bmp"));
		this.setFileFilter(new FileNameExtensionFilter("GIF(*.gif)", "gif"));
		this.setFileFilter(new FileNameExtensionFilter("PNG(*.png)", "png"));
		this.setFileFilter(new FileNameExtensionFilter("JPG(*.jpg)", "jpg"));
	}

	/*-------------------业务逻辑--------------------*/
	@Override
	public void approveSelection() {
		File file = this.getSelectedFile();
		if (file.exists()) {
			int copy = JOptionPane.showConfirmDialog(null, "是否要覆盖当前文件？", "保存",
					JOptionPane.YES_NO_OPTION, JOptionPane.QUESTION_MESSAGE);
			if (copy == JOptionPane.YES_OPTION)
				super.approveSelection();
		} else
			super.approveSelection();
	}
	/*-------------------GET&SET--------------------*/
}